Homework Answers
5) It reprsents the nucleophilic attack.
In the reaction coordinate single
step(concerted) reactions are shown with only one peak .
Endothermic reactions have products with higher energy than reactants.
For each step one maxima and each intermediate one crest are
seen on the reaction coordinate.
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5. For the following reaction step, indicate which pattern of arrow pushing...
5. For the following reaction step, indicate which pattern of arrow pushing it represents. Circle one....
5. For the following reaction step, indicate which pattern of arrow pushing it represents. Circle one. -Ogr Br A. proton transfer C. nucleophilic attack B. loss of leaving group D. rearrangement 6. The following reaction has three mechanistic steps (down, across, and up). Draw all of the curved arrows necessary to complete the mechanism. (Hint: there should be 4 arrows total.) HBO OH Br H-Br OH2 + H₂ö:
5. For the Sul reaction given, the reaction coordinate diagram is as shown. step to t.....
5. For the Sul reaction given, the reaction coordinate diagram is as shown. step to t.. supstintos + Br + OH2 -O-H + HBO -Br 79-H + OH2 Br (a) Which step is the rate determining step for the reaction? Draw the activation energy for that step into the above diagram. (b) Draw the structure of the highest energy intermediate in the reaction. (e) Given the following bond dissociation energies (in kcal/mol), calculate the AH for the overall reaction. Tertiary...
1. What type of bond cleavage does the following reaction describe? Circle one. HOOH 2 HO...
1. What type of bond cleavage does the following reaction describe? Circle one. HOOH 2 HO A.homolytic B. heterolytic C. covalent D. ionic 2. Of following four reactions, which one(s) would you expect to have a negative AS? Circle it/them. Br он Br +Br2 CI +HCI IV Br Br "Вг Br
Multistep reaction mechanisms Group Activity Treating (S)-2-butanol with HBr results in the following two step reaction: Step 1: CH3CH(OH)CH2CH3 + HBr ⇌ CH3CH(OH2)CH2CH3+ + Br- Step 2: CH3CH(OH2)CH2CH3+ + Br- ⇌ CH3CH(Br)CH2CH3 + H2O Draw a mechanism for e
Multistep reaction mechanisms Group ActivityTreating (S)-2-butanol with HBr results in the following two step reaction: Step 1: CH3CH(OH)CH2CH3 + HBr ⇌ CH3CH(OH2)CH2CH3+ + Br-Step 2: CH3CH(OH2)CH2CH3+ + Br- ⇌ CH3CH(Br)CH2CH3 + H2ODraw a mechanism for each step. Draw structures for all reactants and products, including correct stereochemistry (wedges and dashes). Show all the curved arrows in each step, and label each curved arrow according to whether it represents proton transfer, loss of a leaving group, nucleophilic attack, or carbocation rearrangement.
3. Indicate the type e the type of fundamental mechanistic step displayed in each of the...
3. Indicate the type e the type of fundamental mechanistic step displayed in each of the following transformations. Use on transfer. NA for nucleille attack LG for loss of leaving group, and R for rearrangement NA 4. Rank the following carbocations in order of stability (1 MOST-3 - LEAST). For the second set, one of the three is more stable the others due to resonance Circle the one that exhibit this property Dowarows showing the mechanism nowotections of the following...
With explanation please -- thanks! 1.(12 pts) Review the energy profile diagram below for an E1...
With explanation please -- thanks!
1.(12 pts) Review the energy profile diagram below for an E1 reaction involving a carbocation rearrangement, and answer the following questions. Gibbs free energy H-A 20: H-A H . reaction coordinate A) Draw the intermediate C: B) Draw the intermediate G: D) Is the overall reaction (circle one answer): C) Which step is rate-determining? Answer like this (with letters): X-> Y exothermal isothermal endorgornic O -> endothermal exergonic isochoric
5. Draw an arrow-pushing mechanism for the following reaction, and predict the stereochemistry of the product(s)....
5. Draw an arrow-pushing mechanism for the following reaction, and predict the stereochemistry of the product(s). If more than one stereoisomer is formed, state which stereoisomers will be formed in equal quantities and which will be formed in unequal quantities. cat. H2SO4 HO Draw an arrow-pushing mechanism for the following reaction, and predict the stereochemistry of the product(s). If more than one stereoisomer is formed, state which stereoisomers will be formed in equal quantities and which will be formed in...
Questions 2-10 please!! 1) A substitution reaction is: [2] a) A reaction during which an OH...
Questions 2-10 please!!
1) A substitution reaction is: [2] a) A reaction during which an OH group of a molecule is replaced by a halogen. b) A reaction during which water is the leaving group. c) A reaction during which a functional group of a molecule is replaced by an electrophile. d) A reaction during which a functional group of a molecule is replaced by another functional group. V 12 2) Substitution reactions are classified either as electrophilic or nucleophilic...
answer all 1. In each of the following, indicate which S2 reaction will occur faster. Explain...
answer all
1. In each of the following, indicate which S2 reaction will occur faster. Explain your reasoning. a. 1-bromo-2,2-dimethylpropane or 1-bromo-3-methylbutane with Nal in DMSO. b. 1-iodopentane with NaN, in ethanol or NaSCH, in ethanol, c. Reaction of isobutyl iodide with NaBr in acetone or in ethanol. 2. In each of the following, indicate which S, 1 reaction will occur faster. Explain your reasoning. a. Reaction of I-chloro-1-methylcyclohexane or 1-chloro-2-methylcyclohexane in aqueous ethanol. b. Reaction of 2-chloropentane or 3-bromohexane...
5. For the following reaction step, indicate which pattern of arrow pushing it represents. Circle one. -Ogr Br A. proton transfer C. nucleophilic attack B. loss of leaving group D. rearrangement 6. The following reaction has three mechanistic steps (down, across, and up). Draw all of the curved arrows necessary to complete the mechanism. (Hint: there should be 4 arrows total.) HBO OH Br H-Br OH2 + H₂ö:
5. For the Sul reaction given, the reaction coordinate diagram is as shown. step to t.. supstintos + Br + OH2 -O-H + HBO -Br 79-H + OH2 Br (a) Which step is the rate determining step for the reaction? Draw the activation energy for that step into the above diagram. (b) Draw the structure of the highest energy intermediate in the reaction. (e) Given the following bond dissociation energies (in kcal/mol), calculate the AH for the overall reaction. Tertiary...
1. What type of bond cleavage does the following reaction describe? Circle one. HOOH 2 HO A.homolytic B. heterolytic C. covalent D. ionic 2. Of following four reactions, which one(s) would you expect to have a negative AS? Circle it/them. Br он Br +Br2 CI +HCI IV Br Br "Вг Br
3. Indicate the type e the type of fundamental mechanistic step displayed in each of the following transformations. Use on transfer. NA for nucleille attack LG for loss of leaving group, and R for rearrangement NA 4. Rank the following carbocations in order of stability (1 MOST-3 - LEAST). For the second set, one of the three is more stable the others due to resonance Circle the one that exhibit this property Dowarows showing the mechanism nowotections of the following...
With explanation please -- thanks!
1.(12 pts) Review the energy profile diagram below for an E1 reaction involving a carbocation rearrangement, and answer the following questions. Gibbs free energy H-A 20: H-A H . reaction coordinate A) Draw the intermediate C: B) Draw the intermediate G: D) Is the overall reaction (circle one answer): C) Which step is rate-determining? Answer like this (with letters): X-> Y exothermal isothermal endorgornic O -> endothermal exergonic isochoric
5. Draw an arrow-pushing mechanism for the following reaction, and predict the stereochemistry of the product(s). If more than one stereoisomer is formed, state which stereoisomers will be formed in equal quantities and which will be formed in unequal quantities. cat. H2SO4 HO Draw an arrow-pushing mechanism for the following reaction, and predict the stereochemistry of the product(s). If more than one stereoisomer is formed, state which stereoisomers will be formed in equal quantities and which will be formed in...
Questions 2-10 please!!
1) A substitution reaction is: [2] a) A reaction during which an OH group of a molecule is replaced by a halogen. b) A reaction during which water is the leaving group. c) A reaction during which a functional group of a molecule is replaced by an electrophile. d) A reaction during which a functional group of a molecule is replaced by another functional group. V 12 2) Substitution reactions are classified either as electrophilic or nucleophilic...
answer all
1. In each of the following, indicate which S2 reaction will occur faster. Explain your reasoning. a. 1-bromo-2,2-dimethylpropane or 1-bromo-3-methylbutane with Nal in DMSO. b. 1-iodopentane with NaN, in ethanol or NaSCH, in ethanol, c. Reaction of isobutyl iodide with NaBr in acetone or in ethanol. 2. In each of the following, indicate which S, 1 reaction will occur faster. Explain your reasoning. a. Reaction of I-chloro-1-methylcyclohexane or 1-chloro-2-methylcyclohexane in aqueous ethanol. b. Reaction of 2-chloropentane or 3-bromohexane...
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